721416353050 has 12 divisors (see below), whose sum is σ = 1341834416766. Its totient is φ = 288566541200.

The previous prime is 721416353017. The next prime is 721416353081. The reversal of 721416353050 is 50353614127.

It can be written as a sum of positive squares in 3 ways, for example, as 444991723929 + 276424629121 = 667077^2 + 525761^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7214163481 + ... + 7214163580.

Almost surely, 2^721416353050 is an apocalyptic number.

721416353050 is a deficient number, since it is larger than the sum of its proper divisors (620418063716).

721416353050 is a wasteful number, since it uses less digits than its factorization.

721416353050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14428327073 (or 14428327068 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

Adding to 721416353050 its reverse (50353614127), we get a palindrome (771769967177).

The spelling of 721416353050 in words is "seven hundred twenty-one billion, four hundred sixteen million, three hundred fifty-three thousand, fifty".